配位聚合物{[CoL][Fe^(Ⅱ)Fe^(Ⅲ)(ox)_(3)·1.5H_(2)O]}_(∞)的合成、波谱表征和磁学性质  

Coordination Polymer {[CoL] [Fe^(Ⅱ)Fe^(Ⅲ) (ox)_(3)·1.5H_(2)O] }_(∞): Syntheses, Spectra Characterization and Magnetic Properties

作　　者：陈友存[1] 刘光祥[1] 周宏[1] 徐衡[1] CHEN You—Cun;LIU Guang-Xiang;ZHOU Hong;XU Heng(Department of Chemistry,Anqing Normal College,Anqing 246011)

机构地区：[1]安庆师范学院化学系,安庆246011

出　　处：《无机化学学报》2003年第1期103-106,共4页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金资助项目(No.20171001);安徽省科技厅"十五"攻关项目(No.01012038);安徽省教育厅基金资助项目(No.200lkj162)。

摘　　要：二维层状结构的配位聚合物[Cation][Fe^(Ⅱ)Fe^(Ⅲ)(ox)_(3)]=(其中Cation=季胺盐、季膦盐)是一类重要的分子磁体[1-5],由于它们有许多优点,特别是磁性可调性,即通过改变填充在阴离子层间的阳离子就能获得分子基铁磁体、亚铁磁体以及倾斜的反铁磁体[6],引起人们极大注意。但是这类分子基磁体的磁有序临界温度(T_(C))低[7],常见阳离子也仅限于有机阳离子和[FeCp_(2)·]^(*)、[CoCp_(2)]^(*)等金属茂阳离子[7-8]。A new Schiff base complex,CoL(ClO_(4))·3H_(2)O(1){L represents condensed fromequal molar ratio of salicylaldehyde and diethylenetriamine}was synthesized and characterized.Further,a new coordination polymer,{[Fe^(Ⅱ)Fe^(Ⅲ)(ox)_(3)]·1.5H_(2)O}_(∞)(2),was synthesized and characterized,where ox_(2)-=oxalate.The results of the IR and Mssbauer spectra of 2 revealed that the coordination polymer exists 2 D layer structure in the solid state,and anions layer was formed by[Fe^(Ⅱ)Fe^(Ⅲ)(ox)_(3)]^(-)unit.The magnetic properties of 2 have been measured and the results indicate that there is magnetic ordering in the low temperature,which may arise from intermolecular ferromagnetic interactions or spin canted effects.

关 键 词：草酸根桥联 配位聚合物 合成 波谱表征 磁学性质 

分 类 号：O611.4[理学—无机化学] O614.81[理学—化学]